2012 Oceans最新文献_第8页

Satellite based remote management and operation of a 6000m AUV 6,000米水下航行器的卫星远程管理和操作

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6404900

C. Kaiser, J. Kinsey, W. Pinner, D. Yoerger, C. German, C. V. Van Dover

引用次数: 4

Improving estimates of sea level variability from 1900 to 2011 改进1900年至2011年海平面变化的估计

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6405061

B. Hamlington, R. Leben, K.‐Y. Kim

引用次数: 0

Hydrodynamic and oscillatory motions of hybrid floating structure with cylinders 带有气缸的混合式浮动结构的水动力和振荡运动

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6405136

Y. Jeong, Du-Ho Lee, Min-Su Park, Y. You

{"title":"Hydrodynamic and oscillatory motions of hybrid floating structure with cylinders","authors":"Y. Jeong, Du-Ho Lee, Min-Su Park, Y. You","doi":"10.1109/OCEANS.2012.6405136","DOIUrl":"https://doi.org/10.1109/OCEANS.2012.6405136","url":null,"abstract":"In this study, in order to investigate hydrodynamic and oscillatory motions of hybrid floating structure with cylinders, analytical and experimental studies were carried out on hybrid floating structures. In order to investigate hydrodynamic motions, hydrodynamic analyses were performed on the hybrid and pontoon models. Hydrodynamic analyses were carried out to the different incident wave of 0°, 45°, and 90° and hydrodynamic motions of heave, pitch, and surge were analyzed. Also, in order to investigate oscillatory motions, three small-scale models of hybrid, tapered, and pontoon were fabricated and tested under the still-water condition. Finally, oscillatory motions of oscillation period, stabilizing time to steady-state were analyzed. As the results of this study, it was found that the hydrodynamic motions of hybrid model, especially surge motion, were significantly reduced over the wave period 6 sec comparing with the pontoon model. Also, oscillatory motions of hybrid model were presented about 1.7 times longer oscillation period and 0.37 times shorter stabilizing time to steady-state than the pontoon model. Therefore, it was expected that the hybrid model of this study contribute to improve serviceability and safety of offshore floating structures as decreasing hydrodynamic and oscillatory motions.","PeriodicalId":434023,"journal":{"name":"2012 Oceans","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133974721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Challenges in autonomous coastal water sampling 自主沿海水采样的挑战

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6405070

A. Marouchos, C. Neill, M. Sherlock, T. Goodwin, E. van Ooijen, J. Cordell, B. Tilbrook

{"title":"Challenges in autonomous coastal water sampling","authors":"A. Marouchos, C. Neill, M. Sherlock, T. Goodwin, E. van Ooijen, J. Cordell, B. Tilbrook","doi":"10.1109/OCEANS.2012.6405070","DOIUrl":"https://doi.org/10.1109/OCEANS.2012.6405070","url":null,"abstract":"Scientists looking to ground truth data collected by in situ sensors require physical water samples collected at the sensor depth. These samples which are processed in the lab are crucial in increasing the confidence of in situ sensors; especially when such sensors are of a new type. Traditionally, water samples at depth are collected manually through the use of niskin style bottles, or with the simple filling of bottles alongside a vessel. Although this process works for sparse sampling, it is not an efficient way to collect a large number of regular samples across many sites. Shallow reefs may also be inaccessible by boat at low tide. An autonomous water sampling system is needed to allow for the quick and efficient collection of water samples. The system should be relatively inexpensive, compact and lightweight so it can easily be deployed from small boats on reefs and in larger numbers. In addition, it should be easily scalable to allow for the collection of up to 1000ml of sample in either timed intervals or at preset times of day. This paper discusses the challenges of taking such autonomous water samples in coastal reef environments. The design and development of two types of autonomous sampling systems for use in shallow coastal waters is discussed in this context. Results from field trials are also presented. Finally, the paper disuses how these systems can be modified to allow for deep operation, or operation as part of an under way sampling system on a research vessel.","PeriodicalId":434023,"journal":{"name":"2012 Oceans","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134423025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

VHF radar measurements of flow in a salt marsh creek VHF雷达测量盐沼小溪的流量

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6405039

M. Heron, D. Savidge, J. Blanton

引用次数: 0

Underwater controlled source electromagnetic sensing: Locating and characterizing compact seabed targets 水下可控源电磁传感:定位和表征紧凑的海底目标

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6404984

G. Schultz, J. Miller, F. Shubitidze, R. Evans

{"title":"Underwater controlled source electromagnetic sensing: Locating and characterizing compact seabed targets","authors":"G. Schultz, J. Miller, F. Shubitidze, R. Evans","doi":"10.1109/OCEANS.2012.6404984","DOIUrl":"https://doi.org/10.1109/OCEANS.2012.6404984","url":null,"abstract":"The detection of conductive or magnetic objects of interest obscured in coastal and marine sediments has motivated the need for advanced marine geophysical technologies suited for relatively small scale search and characterization missions. Targets include both anthropogenic objects such as marine infrastructure associated with undersea cables, seabed foundations for windfarms, and unexploded ordnance and other munitions hazards as well as shallow natural and geologic objects (e.g, freshwater lens, gas hydrates, mineral ore, and heterogeneous sediment deposits). Successes achieved by large scale marine controlled source electromagnetic systems used for hydrocarbon and mineral exploration have paved the way for potential adaptation of sensing strategies and scaled array configurations to detect and characterize these shallower and smaller targets. Building on established marine electromagnetic theory and based on the use of existing electric and magnetic field sensing designs, we analyze the electromagnetic fields emitted from excited targets in the frequency range between 100 Hz and 200 kHz. We present the results of numerical modeling and experimental studies to develop potential design strategies for implementing both magnetic (B) and electric (E) field sources and receivers. Application of three-dimensional numerical simulations (via the method of auxiliary sources and finite element methods) in addition to one-dimensional analytical models (integral dipole approximations) yield optimal arrangements for a potential advanced electromagnetic sensing system. We study the electromagnetic field distributions from both electric (voltage-fed dipole) and magnetic field (encased and submerged induction coil) active sources. Controlled source experiments in laboratory and open water settings reveal the effects of signal attenuation, target scattering, and influence of the sea bottom.","PeriodicalId":434023,"journal":{"name":"2012 Oceans","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130317972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Characterization of a harbor seal whisker-inspired flow sensor 一种以海豹须为灵感的流量传感器

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6404978

H. Beem, M. Hildner, M. Triantafyllou

引用次数: 15

A new type of wave energy converter using under-water pressure oscillation 一种利用水下压力振荡的新型波浪能转换器

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6404890

S. Song, Jung Yoon Kim, Jae Seung Kim, Jin Bae Park

引用次数: 1

The USS Monitor: A pioneering model for education and outreach 美国监测:教育和推广的先驱模式

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6404962

D. Krop, A. Holloway, D. Alberg

{"title":"The USS Monitor: A pioneering model for education and outreach","authors":"D. Krop, A. Holloway, D. Alberg","doi":"10.1109/OCEANS.2012.6404962","DOIUrl":"https://doi.org/10.1109/OCEANS.2012.6404962","url":null,"abstract":"In the summer of 2002, staff from NOAA's Monitor National Marine Sanctuary (NOAA) and the U.S. Navy recovered USS Monitor's icon revolving gun turret from the Atlantic Ocean, successfully capping off a multi-year recovery of over 200 tons of artifacts from the wreck site of the Civil War ironclad. Since that time, NOAA and their partners at The Mariners' Museum (TMM) have undertaken a pioneering collaborative effort to promote the historical and cultural significance of this National Historical Landmark. Education and outreach initiatives form the backbone of this collaboration, including an award-winning exhibition and conservation laboratory at The Mariners' Museum, classroom initiatives, distance learning, and events and festivals around the country, all of which have introduced hundreds of thousands of people to the Monitor's story. The goals of this multi-pronged approach are to raise public awareness; encourage public involvement in resource protection; increase knowledge about maritime history, science, and technology; and expand ocean and climate literacy. This paper examines the methods used by the partnership to achieve these goals and provides a template for best practices in maritime science and history education through a public-private partnership.","PeriodicalId":434023,"journal":{"name":"2012 Oceans","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114501801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic source localization system using A linear arrangement of receivers for small unmanned underwater vehicles 小型无人潜航器用线性接收器定位系统

2012 Oceans Pub Date : 2012-10-01 DOI: 10.1109/OCEANS.2012.6404991

B. Hodgkinson, D. Shyu, K. Mohseni

引用次数: 4